Flashcard 10

Front

What is a rigid transformation?

Back

A transformation that preserves the shape and size of a figure, including translations, rotations, and reflections.

Front

Define translation in geometry.

Back

A transformation that moves every point of a figure the same distance in a specified direction.

Front

What are the coordinates of Point A' if Point A(4, 5) is translated 4 units left and 5 units down?

Back

(0, 0)

Front

What is the result of reflecting a point across the x-axis?

Back

The y-coordinate of the point changes sign, while the x-coordinate remains the same.

Front

How do you perform a 90° clockwise rotation of a point (x, y)?

Back

The new coordinates will be (y, -x).

Front

What is the equation of a line that represents spending $20 per day from an initial amount of $100?

Back

y = -20x + 100.

Front

What does the term 'reflection' mean in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

If a triangle is translated left two units and up nine units, what is the transformation description?

Back

Move left 2 and up 9.

Front

What is the effect of a 90° counterclockwise rotation on a point (x, y)?

Back

The new coordinates will be (-y, x).

Front

What is the difference between translation and reflection?

Back

Translation moves a figure without changing its orientation, while reflection flips it over a line.